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Pratham
Pratham Vernekar
• Created on Aug 5, 2025 • 0 • 0 • 3
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Integrated Circuits Used

74LS139 74LS04 74LS20

Procedure

  1. Add IC 74LS139 into ICBase-1 (74LS139).
  2. Connect Input-5 to Pin-2 (Input) of ICBase-1 (74LS139).
  3. Connect Input-4 to Pin-3 (Input) of ICBase-1 (74LS139).
  4. Connect Input-4 to Pin-17 (Input) of ICBase-1 (74LS139).
  5. Connect Pin-20 (VCC) of ICBase-2 (74LS04) to VCC Port.
  6. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS04).
  7. Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS139).
  8. Connect GND Port to Pin-8 (Ground) of ICBase-1 (74LS139).
  9. Add IC 74LS04 into ICBase-2 (74LS04).
  10. Connect Pin-1 (Input) of ICBase-3 (74LS20) to Pin-4 (Output) of ICBase-1 (74LS139).
  11. Add IC 74LS20 into ICBase-3 (74LS20).
  12. Connect Pin-2 (Input) of ICBase-3 (74LS20) to Pin-7 (Output) of ICBase-1 (74LS139).
  13. Connect Pin-4 (Input) of ICBase-3 (74LS20) to Pin-15 (Output) of ICBase-1 (74LS139).
  14. Connect Pin-5 (Input) of ICBase-3 (74LS20) to Pin-16 (Output) of ICBase-1 (74LS139).
  15. Connect Output-6 to Pin-6 (Output) of ICBase-3 (74LS20).
  16. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS20).
  17. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS20).
  18. Connect Input-6 to Pin-1 (Input) of ICBase-1 (74LS139).
  19. Connect Pin-1 (Input) of ICBase-2 (74LS04) to Input-6.
  20. Connect Pin-19 (Input) of ICBase-1 (74LS139) to Pin-2 (Output) of ICBase-2 (74LS04).
  21. Connect Input-5 to Pin-18 (Input) of ICBase-1 (74LS139).